logo

Blue Blister Card Brake Fluid Tester Pen With Battery For Car Brake Oil Testing

Product Price
$ 2.29 In Stock
SKUTY001151
MOQ1
KG/Piece0.05 KG
Returns30 days returns. Buyer pays for return shipping. If you use an Acctes shipping label, it will be deducted from your refund amount.
See details
Color Blue Red
With Battery No Yes
Quantity

Blue Blister Card Brake Fluid Tester Pen With Battery

Product Overview

The Blue Blister Card Brake Fluid Tester Pen is a compact, portable diagnostic tool designed to quickly and accurately measure moisture content in automotive brake fluid. Engineered for both professional mechanics and everyday car owners, this tool helps identify when brake fluid needs replacement to maintain optimal braking performance and prevent dangerous brake failure.

This ready-to-use version comes pre-installed with battery, so you can start testing immediately out of the packaging. Its pen-style design fits easily in a tool bag or glove compartment, making it perfect for on-the-go vehicle inspections and routine maintenance checks.

Key Features

  • ✔️ High-precision moisture detection with ±0.3% error margin for reliable results

  • ✔️ Compatible with all common brake fluid types: DOT3, DOT4, and DOT5.1 (not for DOT5 silicone-based fluid)

  • ✔️ Simple dip-and-read operation delivers results in 3 seconds for fast testing

  • ✔️ Durable ABS plastic housing that is drop-resistant and rust-resistant for long service life

  • ✔️ LED or LCD indicators clearly display moisture content levels and service recommendations

  • ✔️ Audio-visual alarm alerts you when moisture levels exceed safe limits requiring fluid replacement

  • ✔️ Automatic shutoff after 5 minutes of inactivity preserves battery life

  • ✔️ Low battery warning indicator to prevent inaccurate testing

  • ✔️ Compact pen-style design for easy storage and portability

  • ✔️ Comes with battery included, ready to use right out of the blue blister packaging

Technical Specifications

SpecificationDetails
Product TypeBrake Fluid Moisture Tester Pen
Detection Range0% ~ 4% Moisture Content
Accuracy±0.3% Margin of Error
Compatible Fluid TypesDOT3, DOT4, DOT5.1
Power Supply2 × 1.5V AAA Batteries (Included)
Operating Temperature0°C ~ 40°C (32°F ~ 104°F)
Storage Temperature-10°C ~ 50°C (14°F ~ 122°F)
Operating Humidity≤ 95% RH
Maximum Operating Altitude≤ 2000m
MaterialDurable ABS Plastic Housing + Metal Probe
DimensionsApprox. 157 × 27 × 23mm
WeightApprox. 50g (without battery)
PackagingBlue Blister Card

Interpretation of Test Results

Moisture ContentStatus Recommendation
< 1.0%Good condition, no replacement needed
1.0% - 2.5%Acceptable condition, monitor for future replacement
> 3.0%High moisture content, immediate brake fluid replacement recommended

Applications & Use Cases

🚗 For Individual Car Owners

  • Routine at-home vehicle maintenance checks

  • Pre-purchase used vehicle inspection

  • Pre-trip road trip safety check

  • Monitor brake fluid condition between service intervals

  • DIY brake system service and fluid replacement

🔧 For Professional Use

  • Automotive repair workshops and garages

  • Vehicle inspection and safety certification stations

  • Fleet maintenance for commercial vehicle operations

  • Mobile mechanic service calls

  • Car dealership pre-delivery inspection

Package Contents

  • 1 × Brake Fluid Tester Pen

  • 2 × 1.5V AAA Batteries (Pre-installed, included)

  • 1 × User Instruction Manual

  • Retail Blue Blister Card Packaging

Why Safety Matters

Brake fluid is hygroscopic, meaning it naturally absorbs moisture from the atmosphere over time. Excess moisture in brake fluid lowers the boiling point of the fluid, which can lead to vapor lock and reduced braking performance under heavy use — a serious safety hazard. Regular testing with your Brake Fluid Tester Pen helps you identify when brake fluid needs replacement, ensuring your braking system works reliably when you need it most.

Payment

  1. We accept a variety of safe and convenient payment methods to meet your different transaction needs, including Alipay, Visa, MasterCard, Telegraph Transfer (T/T), Western Union, and other mainstream payment channels. We also support customized payment solutions according to your actual needs. If you have special payment requirements (such as other payment methods not listed), please feel free to consult our customer service window, and we will provide you with the most suitable payment plan.

  2. Before completing the payment, please carefully check and confirm the accuracy of the payment amount, your account information, and the receiving address. Any errors in the above information may lead to payment failure, payment delay, or delivery errors. We will not be responsible for any losses caused by incorrect information provided by the buyer.

  3. If you encounter any problems during the payment process (such as payment failure, payment stuck, etc.), please contact our customer service in a timely manner. We will respond to you within 24 hours and help you solve the problem to ensure the smooth progress of your payment.

Shipping

  1. All orders will be processed and shipped within 3-5 business days after we receive your full payment (excluding weekends, public holidays, and force majeure events such as natural disasters and logistics outages). Before shipment, our professional quality inspection team will conduct a comprehensive inspection of the goods to ensure that the product quality meets the standard and there is no damage or missing parts.

  2. We only ship goods to the confirmed order address. Please make sure that your order address is consistent with your actual shipping address. If you need to modify the shipping address, please contact our customer service in a timely manner before the order is shipped. Once the goods are dispatched, we will not be able to change the shipping address, and any losses caused thereby shall be borne by the buyer.

  3. For international shipments, the delivery time is affected by factors such as customs clearance speed, local logistics efficiency, and regional policy restrictions. Therefore, we cannot guarantee the exact delivery time. We will provide you with a logistics tracking number immediately after the goods are shipped, so you can check the real-time logistics status at any time.

  4. Any customs duties, import taxes, or other additional fees incurred during the international transportation of goods shall be borne by the buyer. We will provide all necessary documents (such as commercial invoices) required for customs clearance to assist you in completing the customs clearance process smoothly. If you need help with customs clearance-related issues, please contact our customer service.

  5. During the transportation process, if the goods are damaged, lost, or have missing parts due to logistics reasons, please take photos and keep the relevant logistics documents in a timely manner, and contact our customer service immediately. We will verify the situation and provide you with solutions such as return, replacement, or refund according to the actual situation.

  6. Please pay attention to the logistics tracking information. If you find any abnormalities (such as delayed delivery, wrong delivery address, etc.), please contact us in time, and we will coordinate with the logistics company to solve the problem as soon as possible.

Terms Of Sale

  1. If you have any questions about the product, payment, shipping, or other related matters, please contact our customer service in a timely manner. We will respond to you within 24 hours and provide professional solutions to ensure that your problems are properly resolved.

  2. If you do not receive the goods within the expected time, or if you are not satisfied with the received goods (such as product damage, inconsistent specifications, etc.), please do not open a dispute or leave neutral/negative feedback without communication. Contact us first, and we will actively coordinate and solve the problem for you to your satisfaction.

  3. If you receive defective goods (a rare occurrence), please provide clear photos that can show the problem, and we will provide you with a full refund or free replacement according to the actual situation. No additional fees will be charged to you during the process.

Returned & Refund

Your satisfaction is our top priority. All goods are strictly inspected and tested before shipment to ensure that they meet the quality standards.

  1. If you are not satisfied with the goods received, or if the product does not match the description, please contact us first to confirm the return address and logistics method before returning the goods. Do not return the goods without authorization, otherwise, we will not be able to process your return and refund normally.

  2. All returned goods must be in their original condition (without damage, missing parts, or signs of use), and you need to provide the logistics tracking number and a detailed description of the return reason.

  3. The shipping cost for returning the goods shall be borne by the buyer. If the return is caused by our own reasons (such as wrong product, quality problems), we will bear the return shipping cost and provide you with a full refund or free replacement.

  4. If the goods are damaged, lost, or have missing parts due to the buyer’s improper use, storage, or transportation, the buyer shall be responsible for the corresponding losses, and we will not provide a full refund or replacement service.

Feedback

  1. Customer satisfaction is the foundation of our development. Your feedback is very important to us. Whether it is praise, suggestions, or complaints, please feel free to contact us. We will carefully listen to your opinions and continuously optimize our products and services.

  2. If you are satisfied with our products and services, we would appreciate it if you could leave positive feedback. If you have any dissatisfaction, please contact us before leaving neutral or negative feedback—we will do our best to solve the problem and give you a satisfactory reply.



Home

Categories

Cart

Member